fetch(wdk.getEntitiesFromSitelinks({titles: ["Economics", "Sociology", "Demography"], sites: "enwiki"}))
.then(d => d.json())
.then(wdk.parse.wb.entities)
.then(d => Object.values(d).map(q => get_claim(q, "P31", "enwiki")))
.then(
d => aq.from([ { article: "", qvalue: ""}])
.union(d.map(q => aq.from(q)))
.filter(aq.escape(p => p.article != ""))
)
.then(d => d.view())